Specifications: A total of 4 E27 sockets, each with a size of 52*56mm. The E27 lamp adapter fits all lamps with an E27 thread. The voltage is 250V. Material: The material of vintage e27 lamp holder is made of high quality plastic and aluminum. Has good heat resistance, corrosion resistance, insulation and electrical conductivity. Features: The classic look of the lamp base complements the bulbs in different shapes and colors to match to different decoration styles. EASY INSTALLATION: You just need to correctly connect the wires to the positive and negative terminals of the E27 lamp holder, then assemble and tighten everything. APPLICATIONS: The retro socketfits all E27 threaded, LED, incandescent, halogen and energy saving bulb models. Suitable for lighting and decoration of ceiling, bedroom, store, office, garden, etc. Specifications: Product name: e27 bulb holder Material: plastic + aluminum Quantity: 4 pieces Color: Black Rated voltage: 250 V Rated current: 4A Size: Diameter: 40mm Height: 52 mm Central hole diameter: 9 mm External height of the teeth: 22.2 mm Outer diameter of the ring: 56 mm Package included: 4 * E27 ceiling light socket Function: 1. You can easily install it in a short time, very convenient. 2. The design is precise, can be well connected and powered, and can be used for a long time. 3. Suitable for lamps and/or pendants. Note: 1. Please allow 1-3mm size difference due to manual measurement. 2. Because the lamp base and lamp housing are designed with buckle, please do not tighten them before installation, otherwise the lamp holder Welcome to meet